Free PHP IDE w/ Debugger

There is a new free PHP IDE available from a company called Maguma. It is for windows 98, Me, 2000, and XP. If you download the complete version it installs PHP 4.3 on your machine and it adds debugging functionality to the IDE. Sounds pretty nifty. I downloaded it the other day on my home computer but haven’t really tried it out yet. If anyone is looking for a free PHP development program with advanced functionality you might want to try it and let us know what you think.